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Gaseous phosphorus and chlorine combine to produce phosphorous trichloride: P2 (g) + 3Cl2 (g) -> 2PCl3 (g) ?G0= -642.9 kJ mol-1 What is the value of ?G in J mol-1 for a reaction mixture consisting of 1.5 atm P2, 1.6 atm Cl2, and 0.65 atm PCl3?
You will titrate a boric acid solution that has absorbed the ammonia from a soil sample. It is not necessary to know the exact volume or concentration of the boric acid. Explain why not
Calculate the density of a solution if the following data has been recorded during a lab experiment
Each atom in HF has a fractional charge of 0.416. What is the dipole moment of HF? 2. Which of the following molecules has a dipole moment? 3. Of the ions below, which ion has the smallest atomic radius?
How many grams of ice would be melted by the energy obtained as 23.6 g of water vapor is condensed at 100 degrees celcius and cooled to liquid at 0 degrees celcius
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
what mass of carbon dioxide in kg is produced upon the complete combustion of 18.9l of propane approximate contents of
1,3-Butadiene can react with NBS (conditions generating Br2), producing 1,2 and 1,4- addition products. At different reaction temperature, the ratio of the two products is different. (a) Write the reaction equation, (b) indicate which product is p..
the atomic mass of chlorine is listed as 35.454 amu on the periodic table. it has two naturally occurring isotopes, Cl-35 and Cl-37. what are the approximate percentages of each?
A) Colloids are homogeneous solutions. B) A true colloidal particle will not settle out of the dispersing medium. C) Colloidal particles can usually pass through a semipermeable membrane.
Benzene, phenol and benzaldehyde. Which of these would you predict to be the most reactive toward an electrophile? Briefly explain.
A sediment sample of clay was equilibrated with ammonium ion (NH4+). The ammonium ion was then displaced with Na+. The total amount of ammonium that had been adsorbed.
How many mmoles of mercury are in the sample? B) How many mg's of mercury are in the sample? C)What is the percent mercury (w/w) in the ointment?
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